/**
 * @author: ybb
 * @date: 3/14/2018 18:52
 * @description：
 */
public class Hello {
    public static void main(String[] args) {
        int a=298;
        byte b;

        b= (byte) a;
        System.out.println("a="+a);

        System.out.println("b="+b);

        byte a1=3;
        byte a2=4;
        byte a3= (byte) (a1+a2);

        System.out.println("a3="+a3);
    }

}
